Mass Effect 3 Wiki Guide

Citadel Space

Citadel Space is made up of the systems in the galaxy that acknowledges the authority of the Citadel Council. At first, Citadel Space seems to have authority over most of the galaxy. That said, less than 1 percent of the galaxy's stars have been discovered. Citadel Space enjoys a peaceful existence for the most part. That is, until the Reapers returned from their slumber.